US4692065A - Offshore unit structure - Google Patents
Offshore unit structure Download PDFInfo
- Publication number
- US4692065A US4692065A US06/774,588 US77458885A US4692065A US 4692065 A US4692065 A US 4692065A US 77458885 A US77458885 A US 77458885A US 4692065 A US4692065 A US 4692065A
- Authority
- US
- United States
- Prior art keywords
- ground
- reformed
- unit structure
- mound
- rubble
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/0017—Means for protecting offshore constructions
- E02B17/0021—Means for protecting offshore constructions against ice-loads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/26—Compacting soil locally before forming foundations; Construction of foundation structures by forcing binding substances into gravel fillings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0056—Platforms with supporting legs
- E02B2017/0069—Gravity structures
Definitions
- the present invention relates to an offshore unit structure.
- a cement type solidifying agent is impregnated into and mixed with such soft ground to construct a unit-volume reformed ground, and the desired structure is built upon such reformed ground.
- the present invention also can be applied to a unit structure used in prospecting for or production of oil in the sea.
- the present invention is intended to solve these prior art problems and has as an object the provision of an offshore unit structure which is firm and stable and enables a low-cost, rapid construction thereof.
- a cement type solidifying agent is impregnated into and mixed with the soft ground of the sea bottom to construct a unit-volume reformed ground, and a unit structure body is built upon such reformed ground either directly or with the medium of rubble-mound.
- FIG. 1 is a side view of the first embodiment of the present invention.
- FIG. 2 is an enlarged sectional view of the principal parts of the first embodiment.
- FIGS. 3 to 8 are perspective views showing the several forms of the reformed ground.
- FIG. 9 is a sectional view of the second embodiment of the present invention.
- FIG. 10 is a sectional view of the third embodiment of the present invention.
- FIGS. 1 and 2 illustrate a first embodiment of the present invention.
- A denotes a sea bottom soft ground
- B denotes a support ground beneath said soft ground.
- an underground mixing and processing apparatus provided with excavating blades and agitating elements is run into the sea-bottom soft ground A from a work boat and a cement type solidifying agent is charged into the ground A through said apparatus.
- said solidifying agent is impregnated into and mixed with the subsoil in said soft ground A, thereby constructing a unit-volume reformed (solidified) ground 1 which reaches the support ground B.
- rubble-mound 2 is laid over said reformed ground 1 and a unit structure body such as a platform 3 is built up on said rubble-mound 2.
- the reformed ground 1 may be profiled in diverse ways. For example, it may take a rectangular form as a whole, such as wall-like as shown in FIG. 3, block-type as shown in FIG. 4, and lattice-shaped as shown in FIG. 5, and also may take a columnar form as a whole, such as concentric double-column as shown in FIG. 6, wheel-like as shown in FIG. 7, and block-type as shown in FIG. 8.
- the platform 3 made of steel or concrete, has a skirt 32 extending downward from the periphery of a platform base 31, said skirt 32 encircling the reformed ground 1. Also, a plurality of raised strips 33 are provided on the underside of said base 31 so that they are thrust into rubble-mound 2.
- the profile of said platform base may be properly selected in accordance with the configuration of reformed ground 1.
- the raised strips 33 may be formed sharp-edged so that they may be easily thrust into the rubble-mound.
- the structure of this invention can resist against gravitational force by virtue of the compressive stress of reformed ground 1, while the sliding force given thereto in the horizontal direction can be counteracted by the shearing stress of skirt 32 and raised strips 33, the shearing stress of rubble-mound 2, the shearing stress produced between rubble-mound 2 and reformed ground 1, the shearing stress of reformed ground 1, and the shearing stress at the bottom of reformed ground 1.
- the structure of this invention is firm and steadfast against horizontal ice load or earthquake.
- platform 3 may be directly built upon reformed ground 1, with no medium of rubble-mound 2, where the situations of the work area, the conditions in use and the other factors permit such direct building.
- FIG. 9 illustrates a second embodiment of the present invention.
- rubble-mound 2 is built on and along the periphery of reformed ground 1 which is constructed in the same way as the first embodiment described above, and then earth 4 is laid on the area surrounded by said rubble-mound 2, and on this base is built an artificial island 5, which is a unit structure body in the concept of this invention, said artificial island being formed by a circumferential stone wall 51 and an earth mound 52.
- FIG. 10 illustrates a third embodiment of this invention, in which the artificial island 5 of the above second embodiment is surrounded by a caisson 53.
- a caisson 53 On the inside of said caisson 53 is built reinforcing rubble-mound 54, and earth mound 52 fills the inside of said reinforcing rubble-mound 54.
- gravitational force is countervailed by the compressive stress of reformed ground 1, while the sliding force in the horizontal direction can be cancelled by the shearing stress produced between artificial island 5 and rubble-mound 2 and earth 4, the shearing stress of rubble-mound 2 and earth 4, the shearing stress produced between rubble-mound 2 and earth 4 and reformed ground 1, the shearing stress of reformed ground 1, and the shearing stress at the bottom of reformed ground 1.
- the artificial island is firm and steadfast against horizontal ice load or earthquake.
- the present invention also can be applied to a submarine unit structure.
- the present invention finds particularly useful application in trial drilling for or production of oil in the Arctic.
- the offshore unit structure according to the present invention in its unit structure form, can resist firmly and stably against gravitational force by the reformed ground on which the structure is built. It can also counteract firmly and stably sliding force in the horizontal direction produced by horizontal ice load or earthquake, owing to the increased frictional resistance, especially that between the reformed ground and the unit structure body.
- the structure according to this invention can be built easily and rapidly during the short summer season in the Arctic region. Moreover, waste is minimized since the structure of this invention is economical and easy to install and remove.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Revetment (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Foundations (AREA)
- Piles And Underground Anchors (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59-87379 | 1984-04-23 | ||
JP59087379A JPS60230418A (ja) | 1984-04-28 | 1984-04-28 | 海洋単位構築物 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4692065A true US4692065A (en) | 1987-09-08 |
Family
ID=13913257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/774,588 Expired - Lifetime US4692065A (en) | 1984-04-23 | 1985-04-26 | Offshore unit structure |
Country Status (7)
Country | Link |
---|---|
US (1) | US4692065A (de) |
EP (1) | EP0179924B1 (de) |
JP (1) | JPS60230418A (de) |
DE (2) | DE3590196C2 (de) |
GB (1) | GB2172922B (de) |
NL (1) | NL190935C (de) |
WO (1) | WO1985005138A1 (de) |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4828431A (en) * | 1987-09-18 | 1989-05-09 | Exxon Production Research Company | Strengthened protective structure |
US5269632A (en) * | 1992-10-22 | 1993-12-14 | Shell Oil Company | Method for strengthening the structural base of offshore structures |
US5275511A (en) * | 1992-10-22 | 1994-01-04 | Shell Oil Company | Method for installation of piles in offshore locations |
US5277519A (en) * | 1992-10-22 | 1994-01-11 | Shell Oil Company | Well drilling cuttings disposal |
US5301754A (en) * | 1992-10-22 | 1994-04-12 | Shell Oil Company | Wellbore cementing with ionomer-blast furnace slag system |
US5301752A (en) * | 1992-10-22 | 1994-04-12 | Shell Oil Company | Drilling and cementing with phosphate-blast furnace slag |
US5305831A (en) * | 1993-02-25 | 1994-04-26 | Shell Oil Company | Blast furnace slag transition fluid |
US5307876A (en) * | 1992-10-22 | 1994-05-03 | Shell Oil Company | Method to cement a wellbore in the presence of carbon dioxide |
US5307877A (en) * | 1992-10-22 | 1994-05-03 | Shell Oil Company | Wellbore sealing with two-component ionomeric system |
US5309997A (en) * | 1992-10-22 | 1994-05-10 | Shell Oil Company | Well fluid for in-situ borehole repair |
US5309999A (en) * | 1992-10-22 | 1994-05-10 | Shell Oil Company | Cement slurry composition and method to cement wellbore casings in salt formations |
US5311944A (en) * | 1992-10-22 | 1994-05-17 | Shell Oil Company | Blast furnace slag blend in cement |
US5311945A (en) * | 1992-10-22 | 1994-05-17 | Shell Oil Company | Drilling and cementing with phosphate |
US5314031A (en) * | 1992-10-22 | 1994-05-24 | Shell Oil Company | Directional drilling plug |
US5314022A (en) * | 1992-10-22 | 1994-05-24 | Shell Oil Company | Dilution of drilling fluid in forming cement slurries |
US5316083A (en) * | 1992-12-31 | 1994-05-31 | Shell Oil Company | Blast furnace slag spacer |
US5322124A (en) * | 1992-10-22 | 1994-06-21 | Shell Oil Company | Squeeze cementing |
US5325922A (en) * | 1992-10-22 | 1994-07-05 | Shell Oil Company | Restoring lost circulation |
US5330006A (en) * | 1992-10-22 | 1994-07-19 | Shell Oil Company | Oil mud displacement with blast furnace slag/surfactant |
US5332040A (en) * | 1992-10-22 | 1994-07-26 | Shell Oil Company | Process to cement a casing in a wellbore |
US5333690A (en) * | 1992-12-31 | 1994-08-02 | Shell Oil Company | Cementing with blast furnace slag using spacer |
US5343951A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Drilling and cementing slim hole wells |
US5343952A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Cement plug for well abandonment |
US5343947A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Anchor plug for open hole test tools |
US5343950A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Drilling and cementing extended reach boreholes |
US5351759A (en) * | 1992-10-22 | 1994-10-04 | Shell Oil Company | Slag-cement displacement by direct fluid contact |
US5356241A (en) * | 1991-10-08 | 1994-10-18 | Seiko Kogyo Kabushiki Kaisha | Foundation having cylindrical shell and construction method therefor |
US5358049A (en) * | 1992-10-22 | 1994-10-25 | Shell Oil Company | Conversion of emulsion mud to cement |
US5379843A (en) * | 1992-10-22 | 1995-01-10 | Shell Oil Company | Side-tracking cement plug |
US6761508B1 (en) | 1999-04-21 | 2004-07-13 | Ope, Inc. | Satellite separator platform(SSP) |
US8967273B2 (en) | 2013-03-13 | 2015-03-03 | Conocophillips Company | System for detecting, containing and removing hydrocarbon leaks in a subsea environment |
Citations (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2652693A (en) * | 1949-05-16 | 1953-09-22 | Goldman | Submersible support for machinery |
US2938353A (en) * | 1954-12-27 | 1960-05-31 | Shell Oil Co | Submersible drilling barge |
US3021680A (en) * | 1954-12-29 | 1962-02-20 | John T Hayward | Submergible drilling barge with hull protective devices |
US3529919A (en) * | 1967-10-13 | 1970-09-22 | Wladimir Tiraspolsky | Anchoring devices |
JPS501303A (de) * | 1973-05-11 | 1975-01-08 | ||
US3896628A (en) * | 1972-12-01 | 1975-07-29 | Redpath Dorman Long North Sea | Marine structures |
US3906734A (en) * | 1973-08-23 | 1975-09-23 | Texaco Inc | Fixed marine platform with dispersed base |
US3911687A (en) * | 1972-05-02 | 1975-10-14 | Olav Mo | Foundation method for caissons |
JPS5143811A (en) * | 1974-10-11 | 1976-04-14 | Kitagawa Iron Works Co | Nanjakujibannadono kokashorihoho |
US4036161A (en) * | 1973-07-04 | 1977-07-19 | The Secretary Of State For Industry In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain & Northern Ireland | Underwater anchoring apparatus |
US4040263A (en) * | 1973-10-11 | 1977-08-09 | A/S Hoyer-Ellefsen | Arrangement in or relating to drainage |
US4063424A (en) * | 1975-09-10 | 1977-12-20 | Takenaka Komuten Co., Ltd. | Device for constructing a foundation in soft soil formations |
JPS5626725A (en) * | 1979-08-07 | 1981-03-14 | Nippon Steel Corp | Manufacture of manganese sulfate |
JPS5628921A (en) * | 1979-08-14 | 1981-03-23 | Golder Ass Ltd | Underwater structure |
GB2058181A (en) * | 1979-08-14 | 1981-04-08 | Golder Ass Ltd | Underwater Structure |
JPS56150222A (en) * | 1980-04-17 | 1981-11-20 | Kajima Corp | Construction of marine structure |
JPS5766216A (en) * | 1980-10-07 | 1982-04-22 | Mitsui Constr Co Ltd | Artificial islet and its construction work |
US4397586A (en) * | 1979-07-06 | 1983-08-09 | Exxon Production Research Co. | Offshore arctic structure |
US4420275A (en) * | 1982-04-19 | 1983-12-13 | Shell Oil Company | Alaskan offshore drilling base |
US4425055A (en) * | 1982-02-02 | 1984-01-10 | Shell Oil Company | Two-section arctic drilling structure |
US4470725A (en) * | 1982-03-01 | 1984-09-11 | Ingenior Thor Furuholmen A/S | Offshore platform structure intended to be installed in arctic waters, subjected to drifting icebergs |
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US2895301A (en) * | 1955-02-08 | 1959-07-21 | California Research Corp | Stabilization of submarine raft foundations |
FR2127401A5 (de) * | 1971-03-05 | 1972-10-13 | Sea Tank Co | |
JPS501303B2 (de) * | 1971-12-22 | 1975-01-17 | ||
GB1452811A (en) * | 1973-04-26 | 1976-10-20 | Vattenbyggnadsbyran Ab | Construction for marine or submarine installation |
JPS5143812A (en) * | 1974-10-11 | 1976-04-14 | Kitagawa Iron Works Co | Nanjakujibano dobokujoohitsuyonaanteijibannisuru hoho oyobi sochi |
DE2452303A1 (de) * | 1974-11-05 | 1976-05-13 | Bayer Ag | Extraktionsprodukte aus hefezellwandbestandteile enthaltendem material, ein verfahren zu ihrer herstellung sowie ihre verwendung als arzneimittel |
DE2543320A1 (de) * | 1975-09-29 | 1977-04-07 | Rudolf Dr Ing Vogel | Verfahren und anlage zum gruenden eines bauwerks am meeresboden |
GB1511926A (en) * | 1976-03-12 | 1978-05-24 | Kitagawa Iron Works Co | Construction of foundations |
JPS5356841A (en) * | 1976-11-01 | 1978-05-23 | Hitachi Shipbuilding Eng Co | Method of constructing artificial island |
GB1598551A (en) * | 1977-03-15 | 1981-09-23 | Hoeyer Ellefsen As | Marine structure |
GB2079345B (en) * | 1980-07-04 | 1984-04-26 | Takenaka Komuten Co | Apparatus for treating poor subsoil |
JPS5849651A (ja) * | 1981-09-17 | 1983-03-23 | 電気化学工業株式会社 | 目地用プレミツクスセメントモルタル |
GB2125849B (en) * | 1982-03-01 | 1985-09-11 | Takenaka Komuten Co | Machine for and method of hardening soft ground in depths |
GB2115859B (en) * | 1982-03-01 | 1985-09-11 | Takenaka Komuten Co | Machine for and method of hardening soft ground in depths |
-
1984
- 1984-04-28 JP JP59087379A patent/JPS60230418A/ja active Granted
-
1985
- 1985-04-26 WO PCT/JP1985/000240 patent/WO1985005138A1/ja active IP Right Grant
- 1985-04-26 GB GB08531537A patent/GB2172922B/en not_active Expired
- 1985-04-26 DE DE3590196A patent/DE3590196C2/de not_active Expired - Fee Related
- 1985-04-26 NL NL8520105A patent/NL190935C/xx not_active IP Right Cessation
- 1985-04-26 DE DE19853590196 patent/DE3590196T/de active Pending
- 1985-04-26 EP EP85902150A patent/EP0179924B1/de not_active Expired
- 1985-04-26 US US06/774,588 patent/US4692065A/en not_active Expired - Lifetime
Patent Citations (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2652693A (en) * | 1949-05-16 | 1953-09-22 | Goldman | Submersible support for machinery |
US2938353A (en) * | 1954-12-27 | 1960-05-31 | Shell Oil Co | Submersible drilling barge |
US3021680A (en) * | 1954-12-29 | 1962-02-20 | John T Hayward | Submergible drilling barge with hull protective devices |
US3529919A (en) * | 1967-10-13 | 1970-09-22 | Wladimir Tiraspolsky | Anchoring devices |
US3911687A (en) * | 1972-05-02 | 1975-10-14 | Olav Mo | Foundation method for caissons |
US3896628A (en) * | 1972-12-01 | 1975-07-29 | Redpath Dorman Long North Sea | Marine structures |
JPS501303A (de) * | 1973-05-11 | 1975-01-08 | ||
US4036161A (en) * | 1973-07-04 | 1977-07-19 | The Secretary Of State For Industry In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain & Northern Ireland | Underwater anchoring apparatus |
US3906734A (en) * | 1973-08-23 | 1975-09-23 | Texaco Inc | Fixed marine platform with dispersed base |
US4040263A (en) * | 1973-10-11 | 1977-08-09 | A/S Hoyer-Ellefsen | Arrangement in or relating to drainage |
JPS5143811A (en) * | 1974-10-11 | 1976-04-14 | Kitagawa Iron Works Co | Nanjakujibannadono kokashorihoho |
US4063424A (en) * | 1975-09-10 | 1977-12-20 | Takenaka Komuten Co., Ltd. | Device for constructing a foundation in soft soil formations |
US4397586A (en) * | 1979-07-06 | 1983-08-09 | Exxon Production Research Co. | Offshore arctic structure |
JPS5626725A (en) * | 1979-08-07 | 1981-03-14 | Nippon Steel Corp | Manufacture of manganese sulfate |
JPS5628921A (en) * | 1979-08-14 | 1981-03-23 | Golder Ass Ltd | Underwater structure |
GB2058181A (en) * | 1979-08-14 | 1981-04-08 | Golder Ass Ltd | Underwater Structure |
JPS56150222A (en) * | 1980-04-17 | 1981-11-20 | Kajima Corp | Construction of marine structure |
JPS5766216A (en) * | 1980-10-07 | 1982-04-22 | Mitsui Constr Co Ltd | Artificial islet and its construction work |
US4425055A (en) * | 1982-02-02 | 1984-01-10 | Shell Oil Company | Two-section arctic drilling structure |
US4470725A (en) * | 1982-03-01 | 1984-09-11 | Ingenior Thor Furuholmen A/S | Offshore platform structure intended to be installed in arctic waters, subjected to drifting icebergs |
US4420275A (en) * | 1982-04-19 | 1983-12-13 | Shell Oil Company | Alaskan offshore drilling base |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4828431A (en) * | 1987-09-18 | 1989-05-09 | Exxon Production Research Company | Strengthened protective structure |
US5356241A (en) * | 1991-10-08 | 1994-10-18 | Seiko Kogyo Kabushiki Kaisha | Foundation having cylindrical shell and construction method therefor |
US5314022A (en) * | 1992-10-22 | 1994-05-24 | Shell Oil Company | Dilution of drilling fluid in forming cement slurries |
US5343950A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Drilling and cementing extended reach boreholes |
US5322124A (en) * | 1992-10-22 | 1994-06-21 | Shell Oil Company | Squeeze cementing |
US5301752A (en) * | 1992-10-22 | 1994-04-12 | Shell Oil Company | Drilling and cementing with phosphate-blast furnace slag |
US5325922A (en) * | 1992-10-22 | 1994-07-05 | Shell Oil Company | Restoring lost circulation |
US5307876A (en) * | 1992-10-22 | 1994-05-03 | Shell Oil Company | Method to cement a wellbore in the presence of carbon dioxide |
US5307877A (en) * | 1992-10-22 | 1994-05-03 | Shell Oil Company | Wellbore sealing with two-component ionomeric system |
US5309997A (en) * | 1992-10-22 | 1994-05-10 | Shell Oil Company | Well fluid for in-situ borehole repair |
US5309999A (en) * | 1992-10-22 | 1994-05-10 | Shell Oil Company | Cement slurry composition and method to cement wellbore casings in salt formations |
US5311944A (en) * | 1992-10-22 | 1994-05-17 | Shell Oil Company | Blast furnace slag blend in cement |
US5311945A (en) * | 1992-10-22 | 1994-05-17 | Shell Oil Company | Drilling and cementing with phosphate |
US5330006A (en) * | 1992-10-22 | 1994-07-19 | Shell Oil Company | Oil mud displacement with blast furnace slag/surfactant |
US5275511A (en) * | 1992-10-22 | 1994-01-04 | Shell Oil Company | Method for installation of piles in offshore locations |
US5379843A (en) * | 1992-10-22 | 1995-01-10 | Shell Oil Company | Side-tracking cement plug |
US5301754A (en) * | 1992-10-22 | 1994-04-12 | Shell Oil Company | Wellbore cementing with ionomer-blast furnace slag system |
US5358049A (en) * | 1992-10-22 | 1994-10-25 | Shell Oil Company | Conversion of emulsion mud to cement |
US5314031A (en) * | 1992-10-22 | 1994-05-24 | Shell Oil Company | Directional drilling plug |
US5332040A (en) * | 1992-10-22 | 1994-07-26 | Shell Oil Company | Process to cement a casing in a wellbore |
US5269632A (en) * | 1992-10-22 | 1993-12-14 | Shell Oil Company | Method for strengthening the structural base of offshore structures |
US5343951A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Drilling and cementing slim hole wells |
US5343952A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Cement plug for well abandonment |
US5343947A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Anchor plug for open hole test tools |
US5277519A (en) * | 1992-10-22 | 1994-01-11 | Shell Oil Company | Well drilling cuttings disposal |
US5351759A (en) * | 1992-10-22 | 1994-10-04 | Shell Oil Company | Slag-cement displacement by direct fluid contact |
US5333690A (en) * | 1992-12-31 | 1994-08-02 | Shell Oil Company | Cementing with blast furnace slag using spacer |
US5316083A (en) * | 1992-12-31 | 1994-05-31 | Shell Oil Company | Blast furnace slag spacer |
US5305831A (en) * | 1993-02-25 | 1994-04-26 | Shell Oil Company | Blast furnace slag transition fluid |
US6761508B1 (en) | 1999-04-21 | 2004-07-13 | Ope, Inc. | Satellite separator platform(SSP) |
US8967273B2 (en) | 2013-03-13 | 2015-03-03 | Conocophillips Company | System for detecting, containing and removing hydrocarbon leaks in a subsea environment |
Also Published As
Publication number | Publication date |
---|---|
WO1985005138A1 (en) | 1985-11-21 |
NL190935B (nl) | 1994-06-01 |
GB8531537D0 (en) | 1986-02-05 |
EP0179924A4 (de) | 1987-07-09 |
JPH0342376B2 (de) | 1991-06-27 |
NL190935C (nl) | 1994-11-01 |
JPS60230418A (ja) | 1985-11-15 |
GB2172922A (en) | 1986-10-01 |
NL8520105A (nl) | 1986-03-03 |
EP0179924B1 (de) | 1990-11-07 |
GB2172922B (en) | 1988-07-20 |
EP0179924A1 (de) | 1986-05-07 |
DE3590196T (de) | 1986-04-03 |
DE3590196C2 (de) | 1993-09-30 |
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